A gripping mechanism includes a frame and two or more spheres. The frame houses the two or more spheres. At least two spheres of the two or more spheres grip an object. Preferably, the frame includes two or more side plates. The number of the two or more side plates is the same as the number of the two or more spheres. Each of the two or more side plates is inclined toward a center axis of the frame. Each of the two or more spheres is in contact with at least one side plate of the two or more side plates.